EP1417658A4 - Printed bias magnet for electronic article surveillance marker - Google Patents

Printed bias magnet for electronic article surveillance marker

Info

Publication number
EP1417658A4
EP1417658A4 EP02747080A EP02747080A EP1417658A4 EP 1417658 A4 EP1417658 A4 EP 1417658A4 EP 02747080 A EP02747080 A EP 02747080A EP 02747080 A EP02747080 A EP 02747080A EP 1417658 A4 EP1417658 A4 EP 1417658A4
Authority
EP
European Patent Office
Prior art keywords
bias
eas
bias magnet
electronic article
article surveillance
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP02747080A
Other languages
German (de)
French (fr)
Other versions
EP1417658A1 (en
EP1417658B1 (en
Inventor
Ming-Ren Lian
Richard L Copeland
Kevin Romer
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sensormatic Electronics LLC
Original Assignee
Sensormatic Electronics Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Sensormatic Electronics Corp filed Critical Sensormatic Electronics Corp
Publication of EP1417658A1 publication Critical patent/EP1417658A1/en
Publication of EP1417658A4 publication Critical patent/EP1417658A4/en
Application granted granted Critical
Publication of EP1417658B1 publication Critical patent/EP1417658B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B13/00—Burglar, theft or intruder alarms
    • G08B13/22—Electrical actuation
    • G08B13/24—Electrical actuation by interference with electromagnetic field distribution
    • G08B13/2402—Electronic Article Surveillance [EAS], i.e. systems using tags for detecting removal of a tagged item from a secure area, e.g. tags for detecting shoplifting
    • G08B13/2405—Electronic Article Surveillance [EAS], i.e. systems using tags for detecting removal of a tagged item from a secure area, e.g. tags for detecting shoplifting characterised by the tag technology used
    • G08B13/2408—Electronic Article Surveillance [EAS], i.e. systems using tags for detecting removal of a tagged item from a secure area, e.g. tags for detecting shoplifting characterised by the tag technology used using ferromagnetic tags
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F41/00—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
    • H01F41/14—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for applying magnetic films to substrates
    • H01F41/16—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for applying magnetic films to substrates the magnetic material being applied in the form of particles, e.g. by serigraphy, to form thick magnetic films or precursors therefor
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/12—All metal or with adjacent metals
    • Y10T428/12465—All metal or with adjacent metals having magnetic properties, or preformed fiber orientation coordinate with shape

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Automation & Control Theory (AREA)
  • Computer Security & Cryptography (AREA)
  • Electromagnetism (AREA)
  • General Physics & Mathematics (AREA)
  • Burglar Alarm Systems (AREA)
  • Polarising Elements (AREA)
  • Thin Magnetic Films (AREA)

Abstract

The present invention replaces the conventional bias magnets for EAS markers with a paintable or printable bias magnet material, which is either directly painted onto the EAS marker or first placed onto a substrate material, which is then placed into the EAS marker. The material includes a magnetic powder mixed with resin and solvent. This "bias paint" is then applied onto the EAS marker. The magnetic powder, resin, and solvent provide a very dense layer after drying, which has a magnetic material density that is usually lower than a rolled product, but is higher than that of the injection-molded magnet material. Printing the bias magnet allows nondeactivatable magnetomechanical EAS markers to be made using web-based mass production methods.
EP02747080A 2001-07-30 2002-07-22 Printed bias magnet for electronic article surveillance marker Expired - Lifetime EP1417658B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US09/918,619 US6538572B2 (en) 2001-07-30 2001-07-30 Printed bias magnet for electronic article surveillance marker
US918619 2001-07-30
PCT/US2002/023440 WO2003012757A1 (en) 2001-07-30 2002-07-22 Printed bias magnet for electronic article surveillance marker

Publications (3)

Publication Number Publication Date
EP1417658A1 EP1417658A1 (en) 2004-05-12
EP1417658A4 true EP1417658A4 (en) 2005-03-09
EP1417658B1 EP1417658B1 (en) 2010-05-19

Family

ID=25440674

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02747080A Expired - Lifetime EP1417658B1 (en) 2001-07-30 2002-07-22 Printed bias magnet for electronic article surveillance marker

Country Status (8)

Country Link
US (1) US6538572B2 (en)
EP (1) EP1417658B1 (en)
AT (1) ATE468575T1 (en)
AU (1) AU2002316750B2 (en)
CA (1) CA2449832C (en)
DE (1) DE60236439D1 (en)
ES (1) ES2347953T3 (en)
WO (1) WO2003012757A1 (en)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6538572B2 (en) * 2001-07-30 2003-03-25 Sensormatic Electronics Corporation Printed bias magnet for electronic article surveillance marker
GB2411794A (en) * 2004-03-05 2005-09-07 A C S Advanced Coding Systems A magnetic tag comprised of a soft magnetic unit and a hard magnetic unit having coercivity higher than 1000oe
KR100649445B1 (en) * 2005-10-17 2006-11-27 삼성전기주식회사 Wiring forming method and device
US20090195386A1 (en) * 2006-02-15 2009-08-06 Johannes Maxmillian Peter Electronic article surveillance marker
US7779533B2 (en) * 2006-02-15 2010-08-24 Phenix Label Company, Inc. Electronic article surveillance marker
US20080131545A1 (en) * 2006-02-15 2008-06-05 Johannes Maxmillian Peter Electronic article surveillance marker
US20080030339A1 (en) * 2006-08-07 2008-02-07 Tci, Ltd. Electronic article surveillance marker
WO2013115951A2 (en) * 2012-02-01 2013-08-08 Checkpoint Systems, Inc. Permanently deactivatable security tag
US9418524B2 (en) 2014-06-09 2016-08-16 Tyco Fire & Security Gmbh Enhanced signal amplitude in acoustic-magnetomechanical EAS marker
US9275529B1 (en) 2014-06-09 2016-03-01 Tyco Fire And Security Gmbh Enhanced signal amplitude in acoustic-magnetomechanical EAS marker
US10339776B2 (en) * 2017-11-14 2019-07-02 Sensormatic Electronics Llc Security marker

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4510489A (en) 1982-04-29 1985-04-09 Allied Corporation Surveillance system having magnetomechanical marker
US5341125A (en) 1992-01-15 1994-08-23 Sensormatic Electronics Corporation Deactivating device for deactivating EAS dual status magnetic tags
US5426419A (en) 1993-01-14 1995-06-20 Sensormatic Electronics Corporation Security tag having arcuate channel and detacher apparatus for same
US5401584A (en) * 1993-09-10 1995-03-28 Knogo Corporation Surveillance marker and method of making same
US5469140A (en) 1994-06-30 1995-11-21 Sensormatic Electronics Corporation Transverse magnetic field annealed amorphous magnetomechanical elements for use in electronic article surveillance system and method of making same
US5568125A (en) 1994-06-30 1996-10-22 Sensormatic Electronics Corporation Two-stage annealing process for amorphous ribbon used in an EAS marker
US5499015A (en) 1994-09-28 1996-03-12 Sensormatic Electronics Corp. Magnetomechanical EAS components integrated with a retail product or product packaging
JPH0952438A (en) * 1995-08-11 1997-02-25 Fujicopian Co Ltd Pressure sensitive transferrable magnetic recording medium
US5859587A (en) 1996-09-26 1999-01-12 Sensormatic Electronics Corporation Data communication and electronic article surveillance tag
JP3137924B2 (en) * 1997-05-13 2001-02-26 フジコピアン株式会社 Pressure-sensitive transfer magnetic recording media
US6067015A (en) 1998-07-09 2000-05-23 Senormatic Electronics Corporation Magnetomechanical EAS marker with reduced-size bias magnet
US6121879A (en) 1998-12-23 2000-09-19 Sensormatic Electronics Corporation Deactivation element configuration for microwave-magnetic EAS marker
US6419498B1 (en) * 2000-01-26 2002-07-16 Kabushiki Kaisha Pilot Magnetic material-inverting display panel
US6538572B2 (en) * 2001-07-30 2003-03-25 Sensormatic Electronics Corporation Printed bias magnet for electronic article surveillance marker

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
No further relevant documents disclosed *

Also Published As

Publication number Publication date
AU2002316750B2 (en) 2006-10-26
ATE468575T1 (en) 2010-06-15
US6538572B2 (en) 2003-03-25
ES2347953T3 (en) 2010-11-26
DE60236439D1 (en) 2010-07-01
EP1417658A1 (en) 2004-05-12
CA2449832C (en) 2011-03-29
CA2449832A1 (en) 2003-02-13
US20030020612A1 (en) 2003-01-30
WO2003012757A1 (en) 2003-02-13
EP1417658B1 (en) 2010-05-19

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